Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mid-range magnetic resonance wireless energy transfer system

A wireless energy transmission and magnetic resonance technology, applied in the field of wireless energy transmission, can solve the problems of low charging efficiency below 10%, limited charging distance, etc., and achieve the effect of reducing energy consumption, reducing energy storage links, and high efficiency

Inactive Publication Date: 2017-02-15
DONGHUA UNIV
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the wireless charging adopts the electromagnetic induction method, but the electromagnetic induction wireless charging technology is used, and its charging distance is very limited. When the distance is small, the charging efficiency can reach more than 50%. When the distance increases, the charging efficiency quickly drops to 10%. %the following

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mid-range magnetic resonance wireless energy transfer system
  • Mid-range magnetic resonance wireless energy transfer system
  • Mid-range magnetic resonance wireless energy transfer system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0025] Embodiments of the present invention relate to a wireless energy transmission system for mid-range magnetic resonance, such as figure 1 As shown, it includes a transmitting part and a receiving part. The transmitting part includes an electromagnetic resonance energy transmission transmitting coil. The electromagnetic resonance energy transmission transmitting coil generates an alternating magnetic field under the excita...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a mid-range magnetic resonance wireless energy transfer system, which comprises an emission portion and a reception portion. The emission portion comprises a magnetic resonance energy transfer transmitting coil. The magnetic resonance energy transfer transmitting coil is connected with an alternating current source. The alternating current source is used for generating a high-frequency alternating current. The magnetic resonance energy transfer transmitting coil generates an alternating magnetic field under excitation of the high-frequency alternating current. The reception portion comprises a magnetic resonance energy transfer receiving coil and a rectifying circuit, which are connected mutually. The magnetic resonance energy transfer receiving coil is used for receiving the alternating magnetic field generated by the magnetic resonance energy transfer transmitting coil and generating magnetic resonance accumulated energy; and the rectifying circuit is used for rectifying the accumulated energy and then, supplying the energy to a load. The magnetic resonance energy transfer transmitting coil and the magnetic resonance energy transfer receiving coil have the same resonant frequency. The system can improve transmission distance and transmission efficiency.

Description

technical field [0001] The invention relates to the technical field of wireless energy transmission, in particular to a wireless energy transmission system for mid-distance magnetic resonance. Background technique [0002] In June 2007, Marin Sohjacic of the Massachusetts Institute of Technology and his research team made a public demonstration, energized a coil with a diameter of 60cm, lit a 60w bulb connected to another coil about 2m away, and turned the The transmission efficiency was increased to 90%. This system utilizes the principle of resonance. When two objects vibrate at the same frequency, the strength of their energy transfer will not be affected by the surrounding objects. The magnetic resonance method can transmit charges in the air between the transducer and the device, and the coil and capacitor form a resonance between the transducer and the device to realize the technology of efficient transmission of electric energy. Electricity is only transferred betwe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02J50/12
Inventor 陈艳陈光于洋
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com